Cyperus panamensis (C.B. Clarke) Britton ex Standl. Cyperus panamensis (C.B. Clarke) Britton ex Standl. in J. Wash. Acad. Sci. 15: 457. 1925 sec. González-Elizondo & al. 2018≡Mariscus panamensis C.B. Clarke in Kew Bull., Addit. Ser. 8: 16. 1908 syn. sec. Diego & González 2008